I would first make a powerpoint presentation and a nice interesting debate speech.
I would ask my teacher to allow me to show the presentation and give my speech.
I am sure she/he won't deny.
After completing these tasks, I would request a teacher to take us to a ride of the city and I would ask her to mainly focus on the places where poor people are in a bigger quantity.
We would ask them about how difficult it is for them and I hope that my classmates would understand.
Hope I helped. :)